Improvement in lamps



WILLIAM SCARLIETT.` Improvement in Lamps.

Patented May 9,1871.

bien dition WILLIAM SCARLETT', (IF AURORA, ILLINOIS.

Letters Patent No. 114,609, dated May 9, 1871.

IMPROVEMENT IN LAMPS.

The Schedule referred to in these Letters Patent and making part of the same.

To all who-m; it 'may conce/rn Be it known that I, WILLAM SGARLETT, of Aurora, in the county of Kane, iu the State of Illinois, have invented certain new and useful Improvements in Lamps.

My invention relates to that class of lamps in which a small upright reservoir, containing a small quantity of kerosene or other suitable duid, is sur rounded by a larger reservoir with an annular space between, throughwhich a draught of air may ascend.

Lamps of this general construction have been long known, and are much approved. The external reservoir is capacions and maintains the duid at a proper level in the small reservoir fora long time, the connection being made through a small pipe which extends across the annular space at or near the bottom of the reservoir.

My improvement relates to details of the construetion. It prevents the twisting of the wick, which is always liable to lead to kinks and serions entanglements; reduces the resist-ance to the upward passage oi' the air through the structure, and may be cheaply made in a tasty and substantial form. It receives the air through the bottom.

I will proceed to describe what I consider the best means of carrying out my invention.

The accompanying drawing forms a part of .this specification.

Figure lis a central vertical section, and Figure 2 is a horizontal section on the line S S in A is the main reservoir;

A.1 is the shank or shaft which constitutes the stem, which is conveniently grasped by the hand in moving the lamp about; and

A2 is the extended hase. Y

A3 A3 are legs which hold the base A at a sulicient elevation above the table or other object on which Ait stands to allow the free access of air to the bottom, without necessitating any holes or other irregular parts difficult to clean.

B is the internal reservoir. It is pointed at its base,

as represented by B, and connected by the two op' lposite passages b b with the main reservoir A. These parts may be soldered, brazed, or otherwise permanently put together.

Any ordinary or desirable form of burner, wicklifter, chimney, 8vo., may be employed to surmount the structure.

I have represented what I esteem a suitable burner. The lower or base portion, which screws into the upper part of the lsmall reservoir B, is marked C, and the wick-tube'is marked D.

To the lower edge of the male threaded part O I solder 0r otherwise firmly attach a perforated cylindrical casing, G. It may be opened at the lower end, or it may be closed by a bottom of similarly pertbrated material, as shown. This casing G, being,r perma- -nently fixed to the threaded part 0, is turned around therewith, and is removed and inserted therewith,

whenever the lamp is filled, cleaned, or otherwise atI` tended to. -Care must be taken that no more wick is introduced than will be properly contained within the perforated cylinder G. The turning of the ordinary wheel raises and lowers the wick within this casing as usual. 'Ihe importance of the casing G is felt mainly in the introduction of the wick. lu screwing in the burner the wick, instead of twisting many times around, (and becoming often shortened up and permanently deranged so thatV it will not extend down properly into the oil at a low level,) is certain to remain quietly extended in the iuclosing-case. 'Ihe inelosing-case and the wick turn round together. There is no chance of derangement.

I call the perforated casing Ga wick-stiifener. Its function is mainly or entirely to stiien the wick, and cause it to revolve therewith. It may perform its functions equally well if formed .with a'n oval section,

or even if flattened so as to press gently against the `ilat faces of the wick. It is possible, with such construction, to make the edges very much open, or to forego the strengthening qualities due to the joining of the edges altogether, r. in other words, to substitute for the perforated cylindrical casing G here re- .presented two dat pieces of thin metal, or other suitable material extending down each sideof the wick, and holding it forcibly against twisting or otherentanglements. V It is essential in any form ofthe structure that the wick-stiffener supports the wick, and revolves with it in its introduction and removal.

It should have been mentioned earlier that the wickstitener G in the form shown is also of great service in some exigencies, when, in consequence of the fracture of a full lamp, the flame running down the wick is liable to set iireto the entire mass. The wick- Stiiener is likely 'to arrest the spread of the lire in this manner, and confine it to the small amount within the casing or stiiener.

I am aware that some or all the several features of my construction have been before known separately; but the lampV as an entirety 'possesses advantages over any before known to me; and

What I claim as my invention is- The wick-stifener G tixed to and moving with the burner or threaded part G, and adapted to support the wick against twisting and other eutanglements, in combination with, and arranged as shown relatively to the internal reservoir B and the main reservoir A, formed and connected as shown, and supported on the hollow shank Al with a smooth spread base A2 mounted on legs A, so as to form the improved lamp adapted for burning kerosene by natural draught,`

as herein shown and described.

In testimony whereof I have hereunto set my name in the 'presence of two subscribing witnesses.

Witnesses: WILLIAM SOARLETI.

CHARLESv J. PFRAUGH, ALEXANDER 0. LITTLE. 

